Sarah Wayne Callies

Callies' character, Lori, is no longer on the show, yet her presence is still felt. She was the mother of her and Rick's son, Carl, but she was also the de facto matriach of the entire group, protective and nurturing to the core. In real life, the actress has adopted another protective role: She's the celebrity Voice of the International Rescue Committee, a humanitarian organization that helps war-displaced refugees.